Map of Pakistan showing Mehrgarh in relation to the cities of Quetta, Kalat, and Sibi and the Kachi Plain of Balochistan.

Mehrgarh is located near the Bolan Pass, to the west of the Indus River valley and between the Pakistani cities of Quetta, Kalat and Sibi. The site was discovered in 1974 by an archaeological team directed by French archaeologists Jean-François Jarrige and Catherine Jarrige, and was excavated continuously between 1974 and 1986, and again from 1997 to 2000. The earliest settlement at Mehrgarh, in the northeast corner of the 495-acre (2.00 km2) site, was a small farming village that has been dated to between 6500 BCE to 5500 BCE. The whole area covers a number of successive settlements. Archaeological material has been found in six mounds, and about 32,000 artifacts have been collected.[4]

Early Mehrgarh residents lived in mud brick houses, stored their grain in granaries, fashioned tools with local copper ore, and lined their large basket containers with bitumen. They cultivated six-row barley, einkorn and emmer wheat, jujubes and dates, and herded sheep, goats and cattle. Residents of the later period (5500 BCE to 2600 BCE) put much effort into crafts, including flint knapping, tanning, bead production, and metal working.[5] Mehrgarh is probably the earliest known center of agriculture in South Asia.[6]

"…the Kachi plain and in the Bolan basin (are) situated at the Bolan peak pass, one of the main routes connecting southern Afghanistan, eastern Iran, the Balochistan hills and the Indus River valley. This area of rolling hills is thus located on the western edge of the Indus valley, where, around 2500 BCE, a large urban civilization emerged at the same time as those of Mesopotamia and the Ancient Egypt. For the first time in the Indian Subcontinent, a continuous sequence of dwelling-sites has been established from 7000 BCE to 500 BCE, (as a result of the) explorations in Pirak from 1968 to 1974; in Mehrgarh from 1975 to 1985; and of Nausharo from 1985 to 1996."

Mehrgarh Period I 7000 BCE–5500 BCE, was Neolithic and aceramic (i.e., without the use of pottery). The earliest farming in the area was developed by semi-nomadic people using plants such as wheat and barley and animals such as sheep, goats and cattle. The settlement was established with simple mud buildings and most of them had four internal subdivisions. Numerous burials have been found, many with elaborate goods such as baskets, stone and bone tools, beads, bangles, pendants and occasionally animal sacrifices, with more goods left with burials of males. Ornaments of sea shell, limestone, turquoise, lapis lazuli and sandstone have been found, along with simple figurines of women and animals. Sea shells from far sea shore and lapis lazuli found as far away as present-day Badakshan, Afghanistan shows good contact with those areas. A single ground stone axe was discovered in a burial, and several more were obtained from the surface. These ground stone axes are the earliest to come from a stratified context in the South Asia. Periods I, II and III are contemporaneous with another site called Kili Gul Mohammed.

In 2001, archaeologists studying the remains of two men from Mehrgarh made the discovery that the people of the Indus Valley Civilization, from the early Harappan periods, had knowledge of proto-dentistry. Later, in April 2006, it was announced in the scientific journal Nature that the oldest (and first early Neolithic) evidence for the drilling of human teeth in vivo (i.e. in a living person) was found in Mehrgarh. According to the authors, their discoveries point to a tradition of proto-dentistry in the early farming cultures of that region. "Here we describe eleven drilled molar crowns from nine adults discovered in a Neolithic graveyard in Pakistan that dates from 7,500 to 9,000 years ago. These findings provide evidence for a long tradition of a type of proto-dentistry in an early farming culture."[8]

Mehrgarh Period II 5500 BCE–4800 BCE and Merhgarh Period III 4800 BCE–3500 BCE were ceramic Neolithic (i.e., pottery was now in use) and later chalcolithic. Period II is at site MR4 and period III is at MR2.[4] Much evidence of manufacturing activity has been found and more advanced techniques were used. Glazed faience beads were produced and terracotta figurines became more detailed. Figurines of females were decorated with paint and had diverse hairstyles and ornaments. Two flexed burials were found in period II with a covering of red ochre on the body. The amount of burial goods decreased over time, becoming limited to ornaments and with more goods left with burials of females. The first button seals were produced from terracotta and bone and had geometric designs. Technologies included stone and copper drills, updraft kilns, large pit kilns and copper melting crucibles. There is further evidence of long-distance trade in period II: important as an indication of this is the discovery of several beads of lapis lazuli, once again from Badakshan. Mehrgarh Periods II and III are also contemporaneous with an expansion of the settled populations of the borderlands at the western edge of South Asia, including the establishment of settlements like Rana Ghundai, Sheri Khan Tarakai, Sarai Kala, Jalilpur and Ghaligai.[4]

The oldest ceramic figurines in South Asia were found at Mehrgarh. They occur in all phases of the settlement and were prevalent even before pottery appears. The earliest figurines are quite simple and do not show intricate features. However, they grow in sophistication with time and by 4000 BC begin to show their characteristic hairstyles and typical prominent breasts. All the figurines up to this period were female. Male figurines appear only from period VII and gradually become more numerous. Many of the female figurines are holding babies, and were interpreted as depictions of the "mother goddess". However, due to some difficulties in conclusively identifying these figurines with the "mother goddess", some scholars prefer using the term "female figurines with likely cultic significance".[10][11][12]

Evidence of pottery begins from Period II. In period III, the finds becomes much more abundant as the potter's wheel is introduced, and they show more intricate designs and also animal motifs.[4] The characteristic female figurines appear beginning in Period IV and the finds show more intricate designs and sophistication. Pipal leaf designs are used in decoration from Period VI.[13] Some sophisticated firing techniques were used from Period VI and VII and an area reserved for the pottery industry has been found at mound MRI. However, by Period VIII, the quality and intricacy of designs seems to have suffered due to mass production, and due to a growing interest in bronze and copper vessels.[9]

The burials in Mehrgarh site can be divided into two different categories. First, there were individual burials where a single individual was enclosed in narrow mud walls. Next, collective burials have thin mud brick walls within which skeletons of six different individuals were discovered. The bodies in the collective burials were kept in flexed position and were laid in east to west direction. Also interesting were child bones that were found in a large jar (or urn burial) (4000~3300 BCE).[14]

The dental pattern of the neolithic Period I Mehrgarh inhabitants contrasts strongly with the European dental complex, and might represent the western margin of the Southeast Asian dental pattern known as Sundadont.[15][16] Their dental morphology associates them with a distinctively Asian gene pool[17] and shows no strong morphological relationships to known neolithic populations of West Asia. There are still, in fact, Southeast Asian genetic markers and languages present in the Indian subcontinent today that researchers have deemed to be intrusive.[18]